Boundary Atlas

ZIP code 70542: Gueydan, LA

ZIP code 70542 is in Gueydan (38% of residents), in Vermilion Parish (94%) and Cameron Parish (6.4%), Louisiana. 62% of its residents live outside city limits. It is in Louisiana's 3rd congressional district. Its state senate districts are State Senate District 26 (94%) and State Senate District 25 (6.4%); its state house district is State House District 47.

3,063residents (2020 Census)
190.9 sq miland area
1cities and towns
1congressional district
4voting precincts

See it on the mapAll of Louisiana

City and county

City or townShare of ZIP residents
Gueydan38%

CountyShare of ZIP residents
Vermilion Parish94%
Cameron Parish6.4%

Town or county subdivisionShare of ZIP residents
District 1494%
District 46.4%

Congressional district

Congressional districtShare of ZIP residents
Louisiana's 3rd congressional district (LA-03)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 2694%
State Senate District 256.4%

State house districtShare of ZIP residents
State House District 47100%

Voting precincts

4 voting precincts overlap ZIP 70542. Map them, with each precinct's share of the ZIP's residents.

Get this in your AI agent

Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:zcta:70542")

ZIP 70542 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.